Patent US3497224A successfully refreshed from Google Patents.
US3497224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing ring and seal assembly employing same
Assignee: Universal Packing and Gasket Co
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Filing: 1966-08-18
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Granted: 1970-02-24
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Expires: 1986-08-18
Abstract
No abstract record available.
Inventors
- 👤 Aaron J Pippert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:12
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2106293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |